The effects of tin on the hydrogenation of alpha-diketones over platinum nanoclusters

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	The effects of tin on the hydrogenation of alpha-diketones over platinum nanoclusters
	Zhang, J ; Yan, XP ; Liu, HF
刊名	JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
	2001-11-20
卷号	176 期号:1-2 页码:281-286
关键词	Alpha-diketone Tin Platinum Cluster Hydrogenation Modification
ISSN号	1381-1169
英文摘要	The effect of tin on the hydrogenation of alpha -diketones over polymer-stabilized platinum nanoclusters (PVP-Pt) or the corresponding Al2O3 supported platinum nanoclusters (Pt/Al2O3) was investigated. It was shown that Sn2+ has a rate-promoting effect either on the enantioselective hydrogenation of alpha -diketones modified with cinchonidine or on the racemic hydrogenation of them. The average rate increases by a factor of more than 2 for the racemic hydrogenation of 3,4-hexanedione over polymer-stabilized platinum nanoclusters in ethanol solution with a Sn2+ concentration of 1.6 x 10(-4) mol/l. The enantioselectivity could also be enhanced by the addition of Sn2+ in the, enantioselective hydrogenation of these compounds. It is believed that the electrophilic nature of Sn2+ is responsible for the rate promotion. (C) 2001 Elsevier Science B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000171993200029
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/77463]
专题	中国科学院化学研究所
通讯作者	Liu, HF
作者单位	1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China
推荐引用方式 GB/T 7714	Zhang, J,Yan, XP,Liu, HF. The effects of tin on the hydrogenation of alpha-diketones over platinum nanoclusters[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2001,176(1-2):281-286.
APA	Zhang, J,Yan, XP,&Liu, HF.(2001).The effects of tin on the hydrogenation of alpha-diketones over platinum nanoclusters.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,176(1-2),281-286.
MLA	Zhang, J,et al."The effects of tin on the hydrogenation of alpha-diketones over platinum nanoclusters".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 176.1-2(2001):281-286.